238801840 has 40 divisors (see below), whose sum is σ = 555857280. Its totient is φ = 95410176.

The previous prime is 238801799. The next prime is 238801859. The reversal of 238801840 is 48108832.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 238801796 and 238801805.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134881 + ... + 136639.

It is an arithmetic number, because the mean of its divisors is an integer number (13896432).

Almost surely, 2^238801840 is an apocalyptic number.

238801840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238801840 is an abundant number, since it is smaller than the sum of its proper divisors (317055440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238801840 is a wasteful number, since it uses less digits than its factorization.

238801840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3469 (or 3463 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 238801840 is about 15453.2145523189. The cubic root of 238801840 is about 620.4106194236.

The spelling of 238801840 in words is "two hundred thirty-eight million, eight hundred one thousand, eight hundred forty".